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    Now You Go Now You Wont

    Uploaded by

    Sofie Catahan
    This document describes an experiment to test how different materials affect the transmission of radio waves from a remote control to an RC car. Students wrap antennae of the RC car and remote control in various materials like aluminum foil, plastic, paper, wax paper, cotton and rubber gloves. They then time how long it takes the car to travel a set distance for each material. Results showed transmission time varied, with aluminum foil slowing it most and rubber gloves slowing it least. This demonstrates that some materials can interfere with or block radio wave transmission more than others.

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    Now You Go Now You Wont

    Uploaded by

    Sofie Catahan
    35 views2 pages
    This document describes an experiment to test how different materials affect the transmission of radio waves from a remote control to an RC car. Students wrap antennae of the RC car and remote control in various materials like aluminum foil, plastic, paper, wax paper, cotton and rubber gloves. They then time how long it takes the car to travel a set distance for each material. Results showed transmission time varied, with aluminum foil slowing it most and rubber gloves slowing it least. This demonstrates that some materials can interfere with or block radio wave transmission more than others.

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    Original Title

    Now-you-go-Now-you-wont

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    This document describes an experiment to test how different materials affect the transmission of radio waves from a remote control to an RC car. Students wrap antennae of the RC car and remote control in various materials like aluminum foil, plastic, paper, wax paper, cotton and rubber gloves. They then time how long it takes the car to travel a set distance for each material. Results showed transmission time varied, with aluminum foil slowing it most and rubber gloves slowing it least. This demonstrates that some materials can interfere with or block radio wave transmission more than others.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    35 views2 pages

    Now You Go Now You Wont

    Uploaded by

    Sofie Catahan
    This document describes an experiment to test how different materials affect the transmission of radio waves from a remote control to an RC car. Students wrap antennae of the RC car and remote control in various materials like aluminum foil, plastic, paper, wax paper, cotton and rubber gloves. They then time how long it takes the car to travel a set distance for each material. Results showed transmission time varied, with aluminum foil slowing it most and rubber gloves slowing it least. This demonstrates that some materials can interfere with or block radio wave transmission more than others.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    Activity 2

    Now you go! Now you won’t!


    Adapted from: http://www.sciencebuddies.org/

    Objectives:
     Identify materials that can block or allow radio waves to pass through.
     Compare the speed of EM waves through different materials

    Materials:
    Remote controlled (RC) Car and controller (both with new batteries)
    Different materials to test:
     Aluminum foil
     Plastic wrapper
     Paper
     Wax paper
     Cotton
     Rubber gloves
    A wide open space to test drive your RC car

    Procedure:
    1. Wrap the antenna of the RC car and of the receiver with the first material
    you want to test, using several layers so that they are completely and
    securely covered.
    2. Attempt to operate the RC car using the remote control. Does it work?
    3. Use a stopwatch to time your test drive over a set distance.
    4. Repeat steps 1 to 3 using other materials. Make sure to maintain the distance
    between the RC car and the remote control. Collect data in a table similar to
    the table below.

    Set Distance:
    Material Does the Time of Observations
    car work? Travel
    (Y/N)
    aluminum foil Yes 5.47s The slowest out of all
    plastic wrapper Yes 4.13s Slower than wax paper but
    faster than cotton
    paper Yes 3.88s Faster than wax paper
    wax paper Yes 4.01s A little to no difference with
    paper
    cotton Yes 5.09s A little bit faster than
    aluminum but it may
    depend on the amount
    applied
    rubber glove Yes 3.26s The fastest ouf of all

    5. Divide the materials into good and poor transmitters based on your results.

    Guide Questions:
    Q2. Compare the time taken by the RC Car to cover the same distance. Do some
    go faster or slower?
    Answer: Yes, the aluminum foil is the slowest while the rubber glove is the fastest
    out of them all.
    Q3. What does this tell you about the transmission of the signal?
    Answer: That the transmission of the signal can be and was being interfered by
    these materials, even by little.
    Q4. What characteristic of EM waves did you discover?
    Answer: That it travels through a medium/vacuum with the same speed unless
    interfered.

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